Risk of colorectal neoplasia after removal of conventional adenomas and serrated polyps: a comprehensive evaluation of risk factors and surveillance use
Background Surveillance colonoscopy after polyp removal is recommended to prevent subsequent colorectal cancer (CRC). It is known that advanced adenomas have a substantially higher risk than non-advanced ones, but optimal intervals for surveillance remain unclear. - Design We prospectively followed...
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2024
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| In: |
Gut
Year: 2024, Volume: 73, Issue: 10, Pages: 1675-1683 |
| ISSN: | 1468-3288 |
| DOI: | 10.1136/gutjnl-2023-331729 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1136/gutjnl-2023-331729 Verlag, lizenzpflichtig, Volltext: https://gut.bmj.com/content/73/10/1675 
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| Author Notes: | Georgios Polychronidis, Ming-Ming He, Mathew Vithayathil, Markus D. Knudsen, Kai Wang, Mingyang Song |
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| 245 | 1 | 0 | |a Risk of colorectal neoplasia after removal of conventional adenomas and serrated polyps |b a comprehensive evaluation of risk factors and surveillance use |c Georgios Polychronidis, Ming-Ming He, Mathew Vithayathil, Markus D. Knudsen, Kai Wang, Mingyang Song |
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| 520 | |a Background Surveillance colonoscopy after polyp removal is recommended to prevent subsequent colorectal cancer (CRC). It is known that advanced adenomas have a substantially higher risk than non-advanced ones, but optimal intervals for surveillance remain unclear. - Design We prospectively followed 156 699 participants who had undergone a colonoscopy from 2007 to 2017 in a large integrated healthcare system. Using multivariable Cox proportional hazards regression we estimated the subsequent risk of CRC and high-risk polyps, respectively, according to index colonoscopy polyps, colonoscopy quality measures, patient characteristics and the use of surveillance colonoscopy. - Results After a median follow-up of 5.3 years, we documented 309 CRC and 3053 high-risk polyp cases. Compared with participants with no polyps at index colonoscopy, those with high-risk adenomas and high-risk serrated polyps had a consistently higher risk of CRC during follow-up, with the highest risk observed at 3 years after polypectomy (multivariable HR 5.44 (95% CI 3.56 to 8.29) and 8.35 (95% CI 4.20 to 16.59), respectively). Recurrence of high-risk polyps showed a similar risk distribution. The use of surveillance colonoscopy was associated with lower risk of CRC, with an HR of 0.61 (95% CI 0.39 to 0.98) among patients with high-risk polyps and 0.57 (95% CI 0.35 to 0.92) among low-risk polyps. Among 1548 patients who had high-risk polyps at both index and surveillance colonoscopies, 65% had their index polyps in the proximal colon and 30% had index and interval polyps in the same segments. - Conclusion Patients with high-risk polyp findings were at higher risk of subsequent CRC and high-risk polyps and may benefit from early surveillance within 3 years. The subsite distribution of the index and recurrent high-risk polyps suggests the contribution of incomplete resection and missed lesions to the development of interval neoplasia. | ||
| 650 | 4 | |a colonic polyps | |
| 650 | 4 | |a colonoscopy | |
| 650 | 4 | |a colorectal cancer | |
| 650 | 4 | |a surveillance | |
| 700 | 1 | |a He, Ming-Ming |e VerfasserIn |4 aut | |
| 700 | 1 | |a Vithayathil, Mathew |e VerfasserIn |4 aut | |
| 700 | 1 | |a Knudsen, Markus D. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Wang, Kai |e VerfasserIn |4 aut | |
| 700 | 1 | |a Song, Mingyang |e VerfasserIn |4 aut | |
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